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Recognised as Colour

#01245B

  • #01245B
  • Blue
  • Dark
  • Nearest: Dark slateblue

#01245B is a blue with RGB values 1, 36, 91 and HSL 217°, 98%, 18%. It is a dark colour, so white text on it reaches 14.9:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#01245B#01245B
HEX#01245B
RGBrgb(1, 36, 91)
RGB (0–1)0.0039, 0.1412, 0.3569
RGB percentages0.4%, 14.1%, 35.7%
HSLhsl(216.7, 97.8%, 18%)
HSV / HSBhsv(216.7, 98.9%, 35.7%)
CMYK98.9%, 60.4%, 0%, 64.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer74,843
CSS custom property--colour: #01245B;

Brightness & contrast

Relative luminance0.02024WCAG 2.x, 0 is black and 1 is white
Perceived brightness41.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.95:1
Contrast with white14.95:1WCAG normal text: AAA
Contrast with black1.4:1WCAG normal text: Fail
Greyscale equivalent#212121
Inverted#FEDBA4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002B5Dno red cones; affects about 1% of men; ΔE 5.7 from the original
Deuteranopia#00235Ano green cones; the most common form, about 1% of men; ΔE 0.5 from the original
Tritanopia#00323Bno blue cones; rare, and affects men and women equally; ΔE 36 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text14.95:1WCAG large text: AAA
Contrast with black, large text1.4:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 20.9Midnight blue · ΔE 23Rebecca purple · ΔE 36.2Steel blue · ΔE 40.8Black · ΔE 41.5Indigo · ΔE 42.5
Nearest named CSS colourDark slateblue (#483D8B)ΔE 20.85, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5B3801
Analogous#01515B, #0B015B
Triadic#5B0124, #245B01
Split complementary#5B0B01, #515B01
Tetradic#5B0151, #5B3801, #015B0B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#2B7DFD
Lighter +30%#0360F2
Lighter +20%#024CC0
Lighter +10%#02388D
Darker −10%#001029
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#00245C
Less saturated −25%#0C2750

Channel breakdown

R1
G36
B91
Red1 (0.4%)
Green36 (14.1%)
Blue91 (35.7%)
Hue216.67°
Saturation (HSL)97.83%
Lightness18.04%
Dominant channelBlue
Hex per channelR 01 · G 24 · B 5B

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Every value on this page was computed from “01245b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.